CA2295973A1 - Method of and system for cone-beam tomography reconstruction - Google Patents

Method of and system for cone-beam tomography reconstruction Download PDF

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Publication number
CA2295973A1
CA2295973A1 CA002295973A CA2295973A CA2295973A1 CA 2295973 A1 CA2295973 A1 CA 2295973A1 CA 002295973 A CA002295973 A CA 002295973A CA 2295973 A CA2295973 A CA 2295973A CA 2295973 A1 CA2295973 A1 CA 2295973A1
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Prior art keywords
cone
data
projections
calculated
radon transform
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CA002295973A
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French (fr)
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CA2295973C (en
Inventor
Ruola Ning
Xiaohui Wang
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University of Rochester
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University Of Rochester
Ruola Ning
Xiaohui Wang
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Priority claimed from US08/888,331 external-priority patent/US5999587A/en
Application filed by University Of Rochester, Ruola Ning, Xiaohui Wang filed Critical University Of Rochester
Publication of CA2295973A1 publication Critical patent/CA2295973A1/en
Application granted granted Critical
Publication of CA2295973C publication Critical patent/CA2295973C/en
Anticipated expiration legal-status Critical
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
    • A61B6/4447—Tiltable gantries
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S378/00—X-ray or gamma ray systems or devices
    • Y10S378/901—Computer tomography program or processor

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Tents Or Canopies (AREA)
  • Road Signs Or Road Markings (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

A method of and system for performing intravenous tomographic digital angiography imaging which combines the principles of intravenous digital angiography with those of cone beam volume tomography for generating a direct, unambiguous and accurate 3-D reconstruction of stenosis and other irregularities and malformations from 2-D cone-beam tomography projections is disclosed in which several different data acquisition geometries, such as a circle-plus-arc data acquisition geometry, may be utilized to provide a complete set of data so that an exact 3-D reconstruction is obtained. Only a single IV contrast injection with a short breathhold by the patient is needed for use with a volume CT scanner which uses a cone-beam x-ray source and a 2-D detector for fast volume scanning in order to provide true 3-D descriptions of vascular anatomy with more than 0.5 1p/mm isotropic resolution in the x, y and z directions is utilized in which one set of cone-beam projections is acquired while rotating the x-ray tube and detector on the CT gantry and then another set of projections is acquired while tilting the gantry by a small angle. The projection data is preweighted and the partial derivatives of the preweighted projection data are calculated. Those calculated partial derivatives are rebinned to the first derivative of the Radon transform, for both the circular orbit data and the arc orbit data. The second partial derivative of the Radon transform is then calculated and then the reconstructed 3-D images are obtained by backprojecting using the inverse Radon transform.
CA002295973A 1997-07-03 1998-06-19 Method of and system for cone-beam tomography reconstruction Expired - Fee Related CA2295973C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/888,331 1997-07-03
US08/888,331 US5999587A (en) 1997-07-03 1997-07-03 Method of and system for cone-beam tomography reconstruction
US09/014,107 US6075836A (en) 1997-07-03 1998-01-27 Method of and system for intravenous volume tomographic digital angiography imaging
US09/014,107 1998-01-27
PCT/US1998/012468 WO1999001066A1 (en) 1997-07-03 1998-06-19 Method of and system for cone-beam tomography reconstruction

Publications (2)

Publication Number Publication Date
CA2295973A1 true CA2295973A1 (en) 1999-01-14
CA2295973C CA2295973C (en) 2008-01-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA002295973A Expired - Fee Related CA2295973C (en) 1997-07-03 1998-06-19 Method of and system for cone-beam tomography reconstruction

Country Status (7)

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US (2) US6075836A (en)
EP (1) EP0993272B1 (en)
AT (1) ATE305267T1 (en)
AU (1) AU732921B2 (en)
CA (1) CA2295973C (en)
DE (1) DE69831742T2 (en)
WO (1) WO1999001066A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112244884A (en) * 2020-10-27 2021-01-22 沈阳先进医疗设备技术孵化中心有限公司 Bone image acquisition method and device, console equipment and CT system

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CN112244884B (en) * 2020-10-27 2023-08-29 沈阳先进医疗设备技术孵化中心有限公司 Bone image acquisition method, device, console equipment and CT system

Also Published As

Publication number Publication date
WO1999001066A9 (en) 1999-04-22
ATE305267T1 (en) 2005-10-15
WO1999001066A1 (en) 1999-01-14
AU7969098A (en) 1999-01-25
US6075836A (en) 2000-06-13
EP0993272B1 (en) 2005-09-28
US6298110B1 (en) 2001-10-02
CA2295973C (en) 2008-01-22
EP0993272A1 (en) 2000-04-19
AU732921B2 (en) 2001-05-03
DE69831742T2 (en) 2006-06-22
DE69831742D1 (en) 2005-11-03

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